Involvement of the extracellular matrix and integrin signalling proteins in skeletal muscle glucose uptake

TY - JOUR

T1 - Involvement of the extracellular matrix and integrin signalling proteins in skeletal muscle glucose uptake

AU - Tillin, Neale A.

AU - Hurren, Nicholas M.

AU - Draicchio, Fulvia

AU - Lykke Sylow, Lykke

AU - Behrends, Volker

AU - Mackenzie, Richard W. A.

PY - 2022/9/2

Y1 - 2022/9/2

N2 - Whole-body euglycaemia is partly maintained by two cellular processes that encourage glucose uptake in skeletal muscle; 1) the insulin- and 2) contraction-stimulated pathways, with research suggesting convergence between these two previously separate processes. The normal structural integrity of the skeletal muscle requires an intact actin cytoskeleton as well as integrin-associated proteins, thus those structures are likely fundamental for effective glucose uptake in skeletal muscle. In contrast, excessive extracellular matrix (ECM) remodelling and integrin expression in skeletal muscle may contribute to insulin resistance owing to an increased physical barrier causing reduced nutrient and hormonal flux. This review paper explores the role of the ECM and the actin cytoskeleton in insulin- and contraction-mediated glucose uptake in skeletal muscle. This is a clinically important area of research given that defects in the structural integrity of the ECM and integrin-associated proteins may contribute to loss of muscle function and decreased glucose uptake in type 2 diabetes.

AB - Whole-body euglycaemia is partly maintained by two cellular processes that encourage glucose uptake in skeletal muscle; 1) the insulin- and 2) contraction-stimulated pathways, with research suggesting convergence between these two previously separate processes. The normal structural integrity of the skeletal muscle requires an intact actin cytoskeleton as well as integrin-associated proteins, thus those structures are likely fundamental for effective glucose uptake in skeletal muscle. In contrast, excessive extracellular matrix (ECM) remodelling and integrin expression in skeletal muscle may contribute to insulin resistance owing to an increased physical barrier causing reduced nutrient and hormonal flux. This review paper explores the role of the ECM and the actin cytoskeleton in insulin- and contraction-mediated glucose uptake in skeletal muscle. This is a clinically important area of research given that defects in the structural integrity of the ECM and integrin-associated proteins may contribute to loss of muscle function and decreased glucose uptake in type 2 diabetes.

U2 - 10.1113/JP283039

DO - 10.1113/JP283039

M3 - Article

SN - 1469-7793

JO - Journal of Physiology

JF - Journal of Physiology

ER -